Regulator for a fluid apparatus



FIG. 1 is a top, front and left-side perspective view of a regulator fora fluid apparatus showing our new design;

FIG. 2 is a front view thereof, the rear view being a mirror image;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The ornamental design for a regulator for a fluid apparatus, as shown.